Netflix Parental Controls Settings. Open the Profile Parental Controls settings for your childs profile. Setting controls on Netflix at account level.

Open Profile Parental Controls for the profile you want to secure. Again from the main page hover your mouse to the top-right corner of the screen and click on Account. On the Home page click on the profile icon down arrow and click on Account from the list of options.
Now click the arrow next.
Setting controls on Netflix at account level. To get the latest version of parental controls. Click the profile icon you just created and scroll to Maturity Settings. Go to the Netflix website and tap profile icon in the top right.